Wrigley used to run a bagcheck in a small white building that's adjacent to, but not attached to, the stadium. It's near the front entrance at Clark & Addison (the building is actually closer to Clark & Waveland) and the bike check is there as well. I'm not sure they still run the claim check there, though ... I can check tomorrow and report back. :? On the Cubs.com website, they do say The following items will not be permitted: HARD-SIDED COOLERS OF ANY SIZE AND/OR TYPE THERMOSES LARGE BAGS, LUGGAGE ETC., OVER THE SIZE OF 16" X 16" X 8" BOTTLES, CANS, ALCOHOLIC BEVERAGES (plastic bottles of water and soft drinks not exceeding one liter acceptable) There will be no claim checks available for hard-sided coolers at the gates. Bags over the size limit will be claim checked only after inspection. So presumably they do still operate some sort of claim check service. they no longer do claim checks at the donut shop, however. it's been converted to some sort of game day media headquarters, if I'm not mistaken. The bike check has been moved to the west end garage of the car wash. i'm not sure that you can check anything other than bikes there, though.